forney



2 SheetsSheet 1.

Patented July 30, 1889.

M. N. FORNEY. LOOOMOTIVE ENGINE.

(No Model.)

NZ PETERS, Phuto-Liihographm, Washlnghn, n. c.

2 Sheets-Sheet 2.

(No Model.)-

M. N. FORNEY. LOOOMOTIVE ENGINE. No. 408,004. Patented July 30, 1889.

WITNESSES:

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INVE r0)? UOR'IVEY referred to, the fire-box of the locomotive 1s UNITED STATES PATENT ()FEIGE.

MATTHIAS N. FORNEY, OF NEXV YORK, ,N. Y.

LOCOMOTIV E-ENGINE.

SPECIFICATION forming part of Letters Patent No. 408,004, dated July 30, 1889.

Application filed May 7, 1889. Serial No. 809,937. (No model.)

To all whom it may concern.-

Be it known that I, MATTHIAs N. FORNEY, of the city, county, and State of New York, have invented certain new and useful. Improvements in Locomotive-Engines, of which improvements the following is a specification.

My present invention is an improvement upon a construction which, among other features, is set forth in. Letters Patent of the United States No. 266,685, granted and issued to me under date of October 31, 1882; and its object is to admit of the use of inside main frames and of a fire-box which is wider than the distance between the wheels, and of such a form as will permit these main frames to be securely connected to extensions of the frames behind the rear driving-wheels or behind the fire-box, as well as to provide a firebox of simpler, stronger, and less expensive construction than that of said Letters Patent.

To these ends any invention, generally stated, consists in a fire-box which is narrower at its front end than the distance between the driving-wheels and having its sides inclined to the longitudinal center line of the engine and its rear portion of greater width than the distance between the drivingwheels; also in the combination of a fire-box as above specified, and inside frames extending rearwardly beyond the rear driving-axle; also in the combination of a fire-box as above specified, inside main frames, outer supplemental frames, and diagonal or inclined connections uniting the main and supplemental frames.

The improvements claimed are hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a diagrammatic plan view, with the fire-box in horizontal section, of a portion of a locomotive-engine illustrating an application of my invention; Fig. 2, a diagrammatic side View of a locomotive-engine, showing a modifica-' tion;Fig. 3, a plan View of the same with the fire-box in horizontal section, Fig. 4,21 similar view showing a further modification, and Fig.5 a diagrammatic side view of the construction shown in Fig. 4.

In my Letters Patent No. 266,685, before shown as made sufficiently narrow at its front end to enable its forward portion to be placed between the rear driving-wheels, in rear of which it is widened out with lateral offsets, the sides of the fire-box between the narrow and the wide portions being each bent at a right angle, so as to connect the wide with the narrow part, such form of construction preventing the extension of the inside frames behind the firebox. In order to obviate this objection as well as to provide a fire-box of easier and stronger construction, the fire-box is, under my present invention, formed with sides which are inclined to the longitudinal center line of the engine, the front portion of the fire-box being narrow enough to be set between the Wheels, and the rear portion being widened out or extended laterally as far as may be deemed desirable.

The rear portion of the fire-box can be made of any desired form, but is preferably semi-cylindrical, as shown, that form admitting of the simplest method of construction, and the inside frames may be rearwardly extended for the proper distance to admit of the support of the weight overhanging the rear driving-wheels. Among the advantages of this construction are cheapness and simplicity of the fire-box and the ability of affording therein practically any desired width and length with a grate of corresponding area. Variation in structureof frames having inside members extending in rear of the drivingwheels is further admitted of in the discretion of the constructor.

The locomotive-engineherein illustrated accords with that of Letters Patent No. 266,685, in the general features of having its forward portion supported upon a leading truck 1, its middle portion upon driving-wheels 2 3, and the rear overhanging weight of its fire-box, cab, and foot-plate upon the forward truck 4 of an independent tender 5. The waist 6 and smoke-box 7 of the boiler are located above the driving-wheels 2 3 and leading truck 1, the driving and truck wheels varying in number in accordance with the characteristics of the special type or pattern of engine in which my improvements are applied. The fire-box Sis located wholly in rear of the axle of the rear driving-vheels 3, a foot-plate 9 and cab 10 being provided in proper position relatively to the fire-box, and being, together with the overhanging weight of the latter, supported, through rearwardly extending frame m cmbers 12, upon the front tender-truck 4.

The essential feature of improvement embodied in the fire-box consists, as will be seen in each of the instances illustrated, in its form in horizontal section'that is to say, its forward end is of less width than the distance between the tires of the rear pair of drivingwheels 3, so as to be capable of location between the same and at any desired distance behind their axle, and its sides inclined ontwardly to its rear end, the width of which (within the limit admissible for passage over the road) and its distance from the front end may be as great as desired or as deemed requisite for the provision of the grate area and heating-surface which will be sufficient for and properly adapted to the performance of the duty for which the engine is designed. The rear end of the fire-box is shown as semicylindrical, such being considered preferable by me on account of its structural simplicity and strength; but it may obviously be provided with a plane rear end, if desired, wit-hout departure from its governing principle of construction.

-The employment of inside frames extending backwardly from the rear axle, which is rendered practicable by the fire-box above described, is exemplified under modification in detail in the drawings.

Referring first to Fig. 1, the inside main frames 11 are connected by diagonal braces 11 11, which are rearwardly extended along the sides of the fire-box, being inclined outwardly in correspondence therewith, to points near its rear end, at which points they are secured to outside supplemental frames 12, similar to those of Letters Patent No. 266,685, andsimilarly serving, in connection with the front tender-truck 4, to support the rear end of the engine. This construction presents the advantage of connecting the inside and outside frame-members by diagonal bracing 11 11, the lateral strains tending, in longitudinal tension, to separate the inside frames and dfaw together the outside frames, and tending reversely in compression, which strains are result-ant upon the inclined position of the rear portions of the inside frames, are resisted by a transverse bar or brace 13, secured at its ends to the inside frames 11. in front of the fire-box, and by forming the footplate 9 of sufficient strength and bolting or riveting the outside frames 12 thereto, or equivalently by connecting said frames by a special transverse brace in rear of the fire-box.

In the construction illustrated in Figs. 2 and 3 the inside main frames 11 terminate at or near the front end of the fire-box, and are there secured to the supplemental frames 12, which extend rearwardly along and parallel with the sides of the fire-box and forwardly in diagonal position between the main frames 11, to which their front ends are secured in rear of the cylinders 14, the supplemental frames abutting and being connected one to the other in the longitudinal central plane of the engine in advance of the rear drivingaxle, and being outwardly inclined from their point of connection to their front ends, the port-ion of the supplemental frames in advance of the fire-box thus being in X'form, as shown in Fig. 3. By connecting the supplemental frames in front and in rear of the fire-box by the transverse brace 13 and footplate 9 or special brace an extremely strong and stable construction is afforded. It will be obvious that the supplemental frames 12 may, if preferred, terminate at their connections with the main frames 11, a transverse brace 13 being provided to resist lateral strain, instead of extending forwardly to connections one with the other and with the main frames, as in the instance shown. The in side mainframes 11 may also be extended rearwardly in vertical planes coinciding with those of their forward portions, as illustrated in Figs. 4 and 5, the bottom of the fire-box being, in this case, raised above the level of that shown in Fig. 2, and the frames 11 being depressed for that portion of their length which is below and behind the fire-box, so that the latter is placed entirely above the frames, either or both of such modifications being applicable in practice, in accordance with the depth of fire-box which may be desired and the limit of elevation of the waist portion of the boiler which may be admissible.

My invention affords, in addition to the structural advantages before mentioned, the collateral one of permitting the journals of the driving-axles to be made of length sufficient to provide such ample bearing-surface as will obviate the objection of heating, which is frequently encountered in engines of the ordinary American type having considerable weight upon their driving-wheels, in which type the length admissible for journalbearing is limited by the necessity of placing the inside frames as far apart as possible in order to attain the maximum width of fire-box. The area of grate not being in my improved construction restricted in any perceptible degree by reduction of the distance from outside to outside of frames, the limitation above referred to is not presented, and the frames may. be set as far withinthe driving-wheel tires as is requisite to admit of any desired increase in length of journals and bearings.

I claim as my invention and desire to secure by Letters Patent 1. In a locomotive-engine, afire-boxhaving its front end of less Width than the distance between the tires of the driving-wheels, and its rear end of greater width than the distance between said tires, and having each of its sides outwardly inclined between its front and its rear end, substantially as set forth.

2. In a locomotive-engine, the combination of a fire-box having its front end'of less-width ICC IIO

than the distance between the tires of the driving-wheels, and its rear end of greater width than the distance between said tires, and having each of its sides outwardly inclined between its front and its rear end, and inside frames extended rearwardly beyond the rear driving-axle, substantially as set forth.

3. In a locomotive-engine, the combination of a fire-box having its front end of less width than the distance between the tires of the driving-wheels, and its rear end of greater width than the distance between said tires, and having each of its sides outwardly inclined between its frontand its rear end, main frames located between the driving-wheels, supplemental frames located outside of the wheels and fire-box, and diagonal connections extending along the sides of the fire-box and secured to the main and the supplemental frames, substantially as set forth.

at. In a locomotive-engine, the combination of a fire-box having its front end of less width than the distance between the tires of the driving-wheels, and its rear end of greater width than the distance between said tires, and having each of its sides outwardly inclined between its front and its rear end, main frames located between the driving-wheels, diagonal frames fastened to the rear ends of the main frames and extending rearwardly along the sides of and behind the fire-box, and transverse braces connecting the rearward extensions of the frames in front and in rear of the fire-box, respectively, substantially as set forth.

5. In a locomotive-engine, the combination of a fire-box having its front end of less width than the distance between the tires of the driving-wheels, and its rear end .of greater width than the distance between said tires, and having each of its sides outwardly inclined between its front and its rear end, main frames located between the driving-wheels, and diagonal frames secured to the rear ends of the main frames and extending rearwardly along the sides of and behind the fire-box, and forwardly in X-shaped diagonal position between the main frames, to which the diagonal frames are secured at the opposite ends ofthe X-shaped diagonals, substantially as set forth.

MATTl-IIAS N. FORNEY. \Vitnesses:

I-I. POWELL RAMSDELL, WALTER G. GILsoN. 

